KDRON Universe Earth & Globe Constelations Map Product Details Product Dimensions: 3.4 x 3.3 x 3.2 inches Item Weight: 6.4 ounces Shipping Weight: 6.4 ounces Item model number: KD-01 Manufacturer recommended age: 6 years and up Never before has the world looked so SQUARE, yet, so cool! A unique bridge between map and globe Oustanding learning tool Great for the classroom and for home Resource for geography, geometry and astonomy A unique bridge between map and globe, this fun learning aid shows how all theparts of the world relate to one another.This colorful and sturdy Earth andSky globe allows viewers to "stand" inside the world at either the North orSouth Poles, and look up at the Northern and Southern Constellations - or downat the Northern and Southern Hemispheres. View just the sky, just the globe,or both at the same time!This combination of globe and celestial skyprojection is a fantastic and innovative visual aid for geography andastronomy. Flip the Kdron Universe one way to instantly view side-by-sidegeographic sites located at opposite sides of traditional round globes. Flipthe Kdron Universe the othe way and see the constellations laid out. Theunique layout allows you to see the relationship between the earth and thenight sky. Combines projections of hemispheres and skydomes in polar andlateral configurations.Assembles for "storage" as a 3.25" cube. K-DRONUniverse uses two K-DRON solids, each with a unique, flipping segment toalternate between earth and sky views.Some interesting information about theKdron shape: In 1985 Polish artist and mathematician Janusz Kapusta discovereda new geometrical shape - an eleven faced polyhedron, which he called theK-dron.K-dron's name is derived from the letter "K",which represents the 11thletter of the alphabet, and "dron" from the greek word "hedron", which meanssurface. K-DRON is both a remarkably simple and complex structure. Its basicform has a square base, 11 multifaceted sides and a diamond-shaped face with a45 degree angle of inclination.